Coin-controlled microscope



2 Sheets- Sheet l.

(No Model.)

A. W. 8u A. H. ROOVERS.

GOIN GONTROLLED MIGROSGOPB. Y No. 439,190. Patented Oct. 28, 1890.

UNITED STATES.

ALFRED WV. ROOVERS AND PATENT OFFICE.

ALEXANDER H. ROOVERS, OF BROOKLYN,

NEW YORK.

COIN-CONTROLLED MICROSCOPE.

SPECIFICATION forming' part 0f Letters Patent No. 439,190, dated October28, 1890.

Application led December 14, 1889. Serial No. 333,829. (No model.) l

To tZZ whom it may concern:

`Be it known that we, ALFRED W. RoovEEs and ALEXANDER H. RoovERs, bothof Brooklyn, in Kings county, and the State of New York, have invented acertain new and useful Improvement in Coin-Controlled Microscopes, ofwhich the following is a specification.

We will describe a coin-controlled microscope embodying our improvement,and then point out the novel features in the claims.

In the accompanying drawings, Figure lis a sectional elevation of acoin-controlled microscope embodying our improvement. Fig. 2 is asectional elevation in a plane at right angles to the plane of Fig. l.Fig. 3 is a horizontal section. Fig. 4 is a horizontal section at theline Qc, Fig. l. Fig. 5 is an elevation of certain parts of amachine ofmodiied construction. Fig. 6 is a top view thereof.

Similar letters of reference designate corresponding parts in all thefigures.

Referring first to Figs. 1, 2, and 3, A designates a box or case, whichmay be made of any suitable material. It is intended to be practicallycapable of excluding light. The top has a hole a, and from this extendsa turret A In this turret a microscope B is arranged, and Vit extendsthrough into the case A. This microscope may be made telescopic and thelower section made adjustable from outside the turret by means ofsecuring to it within the turret an arm B', having one end provided withsegments of a screw-thread and engaging with a screw or Worm B2, one ofwhose journals extends out through the turret, and is provided beyondthe same witha hand-piece. The space between the interior of the turretand the microscope may be furnished with light-excluding packings b b2.

C designates an object plate or support. It

- is intended to be made of glass, and is shown as of circular form, andas supported by a shaft C', which is journaled concentrically to theaxis of the microscope in a bracket C2, which is affixed to one of thewalls of the case A. It is intended that the objects to be viewedthrough the microscope shall be arranged in a circle upon the plate C,and that the axis of the shaft C supporting said plate shall occupy suchrelation to the axis of the microscope that when the plate is rotatedthe objects mounted thereon will be successively brought in line withthe axis of the microscope. j

-The shaft C has affixed to it a pinion C3, and with this engages a rackC4, sliding in bearings provided in any suitable manner, as, forinstance, in brackets secured to one of the walls of the case A. Theracky C4 engages 'with a pinion C5, which is secured to an upright shaftCG. This shaft is supported in a bearing c, secured to the top of thecase A, and it extends through the tcp of the case.

Outside the case it is provided with a handpiece O7. By rotating thishand-piece ineither direction by hand-power the shaft Ci will serve,through the agency of the rackbar C4, to rotate the obj ect-plate C. Thepinions O3 C5 being of the same size, the plate will have the sameamount of rotation as is given to the hand-piece O7. The hand-piece G7may advantageously be provided with a radially-extending index orpointerOS, and the top of the caseA furnished with a series of figurescorresponding to the number and positions of the objects upon the plateC. Then the hand-piece may be turned with reference to the series offigures on the top of the case, so as to adj ust any particular objectupon the plate C beneath the microscope. A pin c1@ inserted in the topof the case A, in such position as to be in the way of the index `orpointerv C8, will prevent the hand-piece from being turned more than onerevolution in either direction.

D designates an electric lamp arranged within the case A and supported,as here shown, by a bracket D', secured to one of the walls of saidcase. It is intended to illumine the objects on the plate C, so thatthey advantageous to use a screen or strainer C10 in line with themicroscope and beneath the object-plate C, so as to prevent the mirrorIOC from shedding light upon the plate except where the object isarranged. We have shown the screen or strainer C10 fastened to thebracket C2.

In the present improvement we control the illumination of the obj ect bythe lamp D by means of a coin.

F designates a chut-e through which a coin is introduced. It opens atthe top of the case A and extends down into the interior thereof.

G designates a lever fulcrumed at g to a bracket G', shown as secured toa plate ex-l tending between the top and bottom of the case A. At oneend this lever has a coin-receptacle g', which when the lever is in itsnormal position is located beneath the chute F. The other end isfurnished with a weight g2, which is suihciently heavy to hold the leverin its normal position, except when a coin of the proper denominationenters its receptacle g.

The lever G is provided with a pin g2, which enters a groove h in a diskH, secured to a shaft H', shown as supported by plates 7L', secured tothe bottom of the case. The groove h, as shown, is of circular form,with one projection extending radially from its circle; but the circularpart of this groove is eccentric to the shaft H. If desired, thecircular part of the groove may be omitted and the surface of the diskleft plain excepting for the radial portion of the groove. When thecircular part is omitted, there will, however, be a segmentalshapedpiece like that which is bounded by the dotted line 71.10 and the arc ofthe circle which the ends of this line meet. A spring h3() extendsoutside the radial portion of the groove to prevent any jarring upon themachine from causing the lever G to swing and disengage its pin g3 fromsaid radial portion of the groove. The shaft H has loosely mounted uponit a pinion H2, which is secured to a ratchet-wheel H2, also looselymounted on said shaft. A pawl h2 pivoted to a wheel H4, that is securedto the shaft H engages with the wheel, thereby connecting the pinion H2with the shaft H when it moves in one direction, but allowing it to runfree of the shaft in the other direction. Vith the pinion H2 engages asegment I. The gearwheel H4 engages with a pinion H5, secured upon ashaft H, which has also secured toit a worm-wheel engaging with a wormor spiral S, secured to a shaft, which is provided with a iiy HS. Thetrain of wheels is stopped by the pin g3 of the lever entering theradial portion of the groove h in the disk H. Thenever the leverv G isswung downward by the dropping of a proper coin into its receptacle, thepin g3 of said lever will descend through the radial portion of thegroove h until it strikes the wall, which is opposite said radialportion in the disk H. This is suicient to unlock the train of wheelsand allow of the rotation thereof; but this will not permit of amovement of the lever sufficient for discharging the coin from itsreceptacle. As the disk H rotates, it will, however, allow of thefarther descent of the lever for the purpose of ejecting` the coin.

The object of providing first for an unlocking movement and subsequentlyfor a movement of the lever to eect the discharge of the coin is topreclude the lever from swinging down suddenly far enough to dischargethe coin and quickly rebounding, so as to lock the train of wheels againbefore the same shall have been fairly started.

I designates a segment-lever fulcrumed by a pin or screw 't' to a plate7L', secured to one side of the case A. .'lhe'arc-shaped surface of thislever is provided with teeth which engage with the pinion H2.

On the rack C* is a bracket 020, having fitted within it a pin cl2,which is capable of moving lengthwise in the bracket, and as thisbracket extends transversely to the rack said pin is free to movetransversely to the length of the rack. A spring 022 surrounds the pinwithin the bracket, bearing at one end against one end of the bracketand engaging at the other end with a hole in the pin, so as to move thepin toward the plane of the segment-lever. The pin has on that end whichis the nearer to the segment-lever a cone C23. When the rack is moved inthe direction indicated by the arrow, Fig. 3, the cone will be carriedagainst a projection 024, supported by one of the plates h, and it andthe pin cl2 will be forced rearwardly out of the plane of thesegment-lever I and will be held rearward of the plane of saidsegment-lever during the further movement of the rack in the directionof the arrow until the cone shall have passed beyond the projection 021.As soon as the cone shall have been carried beyond the projection 024,the spring will force the pin cl2 forward and project the end thereof infront of the segment-lever. Ve mean across that side which is the nearerto the plate C. The reverse movement of the rack will, through themedium of the pin 012, swing the segmentlever I rearward, or, in otherwords, farther .from the plate O, until the pin 012 shall have beencarried far enough for its cone C23 to act upon the projection 024,whereupon said pin will be pulled backward beyond the plane of thesegment-lever and will be free to move beyond the segment-lever to therear or other side thereof. As the segment-lever I moves backward, theteeth of the ratchet-wheel H3 play past the pawl and do not impartmovement to the other wheels. The weight e" will produce a reversemovement of the segmentlever and operate the train of wheels whenever acoin of the proper denomination shall have been dropped through thechute, and effect the release of the train of wheels. We have shown aspring z2 connected with the lever I, which may act in conjunction withthe weight, or the weight or spring may be omitted. It is intended thatthe shaft shall IJI IOO

always be turned in the direction ofthe arrow, Fig. 3, until it comes incontact with the pin cw, to insure the, proper winding of the mechanism,or, in other words, the proper ad-` justment of the segment-leverl foroperating the train of wheels. f

We will now describe the circuit of the electric lamp D and the mannerin which the same is affected by the movement of the train of wheels,premising that the train of wheels and their supports are made of metal.

1 is a wire leading from one pole or electrode of an electric batteryand extending to one of the electrodes of the lamp D. The wire 2 extendsfrom the other electrode of the lamp to a metallic spring-finger 3',which is shown as attached to the top of the case A andrimpinging at oneend against a metal wheel or disk 4, affixed to the shaft C6, and havingin its periphery a block of insulating material. (Indicated by a solidblack mark.) This wheel or disk is insulated from the shaft, as may beseen from the heavy black circle in Fig. 4.

5 is a metallic spring-finger which bears against the wheel or disk 4and is connected to a bracket 6, that is fastened to the top of the caseA. A wire 7 extends from this spriug-inger to a spring-iinger 8, securedto a bracket cl2, but insulated therefrom. The bracket cl2 is fastenedto one of the plates h. The spring-finger 8 is adapted to contact withone side of the wheel H4, and in the latter is a hole 71.15, which is solocated that when the wheel H4 is at rest this hole will be opposite theend of the spring-finger 8 and the circuit will be broken.

The insulating-block in the periphery of the wheel or disk 4 is solocated that it will be opposite the spring-finger 5 and will break thecircuit when the index or pointer CB is in contact with the pin cw. Whenthe shaft C6 is rotated sufficiently to bring the first object intoview, the insulating-block, which is in the periphery of said wheel ordisk 4, will be moved beyond the spring-finger 5 and the circuit will beestablished between the wheel or disk 4 and spring-finger 5, and as soonas the Wheel H4 begins to rotate the circuit will be established between,it and the springnger 8. 9 is the other wire from the electric battery,and it connects with one of the plates h.

In the construction illustrated by Figs. 5 and 6 the lamp may be keptalight continuously, a shutter J being employed to prevent the lightfrom passing through the screen or strainer C10, except after a coin ofthe proper denomination shall have been dropped in the machine and onlywhile the train of wheels is running. This shutter J is affixed to anarm j, that is secured to the shaft H. Normally the shutter is heldimmediately beneath the screen or strainer. Whenever the train of wheelsstarts, the shutter will be moved out of this position and will be keptout of position until the train of Wheels stops.

It Will be readily understood that in this example of the improvement,as well as in that rst described, the' light is turned on and o from theobject to be viewed through 'themicroscope.

What we claim as our invention, and desire to secure by Letters Patent,is

l. The combination, with a microsope, of a box or case, an objectsupport arranged within the box or case, a lamp for illuminating theobjects, a device for turning the light onto an object to be viewedthrough the microscope, and a movable coin-receptacle controlling theoperation of this device, substantially as specified. l

2. The combination, with a microscope, of a box or case, anobject-support arranged within the box or case and movable therein, alamp for illuminating the objects, a device for turning the light ontoan object to be viewed through the microscope, and a movablecoin-receptacle controlling the operation of this device, substantiallyas specied.

3. The combination, with a microscope, of a box or case, an object-support arranged within the box or case, an electric lamp `forilluminating the objects, a rotary wheel in the electric circuit of thelamp, an arm also in the circuit of the lamp coacting with said wheel,and a movable coin-receptacle oontrolling the operation of the wheel,substantially as specied.

4. The combination, with a microscope, of a box or case, anobjectsupport arranged within the box or case, a motor for moving theobject-support, a hand-piece for storing up power in the motor, anelectric lamp for illuminating the objects to be viewed, an electriccircuit extended to a part moved by the hand-piece and having aninterruption in its surface, and an arm extending to the part last namedand also in the electric cir- 'IOO cuit, whereby while the hand-piece ismoved A to store up power in the motor the lamp will not be lighted,substantially as specied.

5. The combination, in a coin-controlled machine, of a shaft C6, arack-bar operated by said shaft, and a segment-lever operated in onedirection by said rack-bar, substantially as specified.

6. The combination, machine, of a shaft C6, having 'a hand-piece C7, andan index or pointer O5, a rackbar operated by said shaft, and asegment-lever operalted by the rack-bar, substantially as speciec.

7. In a coin-controlled machine, the combination of the rotary platformor support C, carried by a rotary shaft, a reciprocating bar impartingmotion to said shaft, another shaft in a coin-controlled serving toreciprocate the bar, a hand-piece,

an index or pointer on the last-mentioned shaft, and a segmentleveroperated in one direction by the rack-bar, substantially as specified.

8. In a coin-controlled machine, the com bination of aseginent-lever,aweight or spring dial groove, and a projection or wall opposite foractuating the same, a train of Wheels said radial groove, substantiallyas specified. u

driven by said segment-1ever, and a reciprocating bar for moving' saidsegment-lever in OIXESIRS 5 one direction, substantially as specied.

9. In a coin-controlled machine, the com- Witnesses: bination of a leverprovided with a coin-re- S. O. EDMONDS,

ceptacie, a rotary disk or Wheel having a ra- C. R. FERGUSON.

